Add 20/14 and 45/7
1st number: 1 6/14, 2nd number: 6 3/7
20/14 + 45/7 is 55/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 14 × 1 = 14,
20/14 = 20 × 1/14 × 1 = 20/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
45/7 = 45 × 2/7 × 2 = 90/14 - Add the two like fractions:
20/14 + 90/14 = 20 + 90/14 = 110/14 - 110/14 simplified gives 55/7
- So, 20/14 + 45/7 = 55/7
In mixed form: 76/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14+45/7 20/14+90/7 20/28+45/7 20/14+45/14 60/14+45/7 20/42+45/7 20/14+45/21 20/70+45/7 20/14+45/35 20/98+45/7 20/14+45/49